282 105- LEGUMINOSAE 



each side. Fruit transversely septate. Plants with apj^resscd hairs 



fixed by the middle. (See 215.) Indigofera L. 



Connective without an appendage, 318 



318. Ovule I. Corolla red, blue, or white ; standard clawed. Fruit ovate, 



indehiscent ; pericarp adhering to the seed. Gland-dotted plants. 

 Stipules stem-clasping, not adnate. sBracts membranous. (See 153.) 



Psoralea L. 



Ovules 2 or more, rarely ovule i, but then fruit more or less cur\^ed or 



coiled, corolla usually yellow, standard almost sessile, and stipules 



adnate to the leafstalk 319 



319. Up])ermost stamen, at least when 3'oung, united with the others in the 



middle. Corolla led or white ; standard suborbicular, clawed ; wings 

 adhering to the keel. Stigma usually hairy. Fruit dehiscing by two 

 valves. Leaflets entire, usually with numerous parallel side-nerves. 

 Flowers in terminal or leaf-opposed racemes, more rarely in axillary 

 racemes or clusters. Bracts distinctly developed. (See 233.) 



Tephrosia Pers. 

 Uppermost stamen free from the base, rarely united with the others 

 in the middle, but then standard oblong or ovate, sessile or nearly so, 

 corolla usually yellow, fruit not or tardily dehiscent, leaflets usually 

 toothed, stipules adnate to the leafstalk, inflorescence axillary, and 

 bracts minute or wanting 320 



320. Ovules I — 2 321 



Ovules more than 2 325 



321. Calvx-lobes verv unequal, the upper two almost wholly united, the 



side ones small, the lowest the longest, enlarged after flowering, scar- 

 ious. Corolla reddish-yeflow ; standard auricled at base. Fruit 

 falcate-ovate, enclosed by the calyx, i-seeded, 2-valved. Twining 



undershrubs. (See 293.) Cylista Ait. 



Calyx-lobes about equal, but the upper ones sometimes more or less united, 

 not or scarcely enlarged after flowering 322 



322. Fruit dehiscing bv two valves, more or less flattened, straight or nearly 



so. Upper calyx-teeth usually more or less united. Standard auricled 



at base. Leaflets usually entire 323 



Fruit not or verv tardily dehiscing, turgid or curved to spiral, exceeding 

 the calvx. Upper calyx-teeth scarcely or not united. Leaflets usually 

 toothed. Stipules adnate to the leafstalk 324 



323. Seeds orbicular or rcniform, with a more or less distinct outgrowth at 



the hilum ; hilum orbicular or oblong, the funicle attached in the 

 middle or nearly so. Standard orbicular or obovate. Twining or 

 decumbent, rarely erect plants. (See 239.) . Rhynchosia Lour. 

 Seeds oblong, without an outgrowth at the hilum ; hilum linear, the 

 funicle attached at its apex. Upper calyx-teeth not or shortly united. 

 Standard oblong or obi:)vate. Erect or decumbent, rarely twining 

 ]>lants. (See 239.) Eriosema DC. 



